Tracy brought 5 trays of plants for $105. each tray contained 12 plants. each plant cost the same amount. plants can be purchased individually. how many more money will tracy need to spend for 15 additional plants?

Trace will need to spend $26.25 for the additional plants.

Step-by-step explanation:

How much she spent for each plant?

Tracy brought 5 trays of plants for $105. Each tray contained 12 plants.

This means that.

12*5 = 60 plants cost $105.

1 plant costs 105/60 = $1.75

How many more money will Tracy need to spend for 15 additional plants?

Each plant costs $1.75.

1.75*15 = $26.25

Trace will need to spend $26.25 for the additional plants.

is there answer choices?

whole numbers.

step-by-step explanation:

we are given the average monthly rainfall (in millimeters) model r(m) for the years 1900-2009 as a function of the month number m.

as we can see m is taken for the number of months for years 1900-2009.

we know that number of months can't be a negative number or decimal number or a fraction.

so, the number of months could be only positive whole numbers.

therefore, whole numbers is more appropriate for the domain of r.